Equilibrium onions?

L Ramos, Didier Roux, P D Olmsted, M E Cates

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We demonstrate the possibility of a stable equilibrium multi-lamellar ("onion") phase in pure lamellar systems (no excess solvent) due to a sufficiently negative Gaussian curvature modulus. The onion phase is stabilized by non-linear elastic moduli coupled to a polydisperse size distribution (Apollonian packing) to allow space-filling without appreciable elastic distortion. This model is compared to experiments on copolymer-decorated lamellar surfactant systems, with reasonable qualitative agreement.

Original languageEnglish
Pages (from-to)888-894
Number of pages7
JournalEuropean Physical Society Letters (EPL)
Volume66
Issue number6
DOIs
Publication statusPublished - Jun 2004

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